﻿using System.Collections.ObjectModel;
using System.ComponentModel;

namespace AssemblyWithBlockingClass
{

    public class A : ObservableCollection<string>
    {
    }
    public class B : INotifyPropertyChanged
    {
        public string Property1 { get; set; }

        public event PropertyChangedEventHandler PropertyChanged;

        public void OnPropertyChanged(string propertyName)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }

}
